Texas Instruments INA200, INA201, INA202 Schematic [ru]

INA200

IN A 2 0 0 INA201

INA202

SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

High-Side Measurement Current-Shunt Monitor

with Comparator and Reference

FEATURES

DCOMPLETE CURRENT SENSE SOLUTION

D0.6V INTERNAL VOLTAGE REFERENCE

DINTERNAL OPEN-DRAIN COMPARATOR

DLATCHING CAPABILITY ON COMPARATOR

DCOMMON-MODE RANGE: −16V to +80V

DHIGH ACCURACY: 3.5% MAX ERROR OVER TEMPERATURE

DBANDWIDTH: 500kHz (INA200)

DQUIESCENT CURRENT: 1800 A (max)

DPACKAGES: SO-8, MSOP-8

DESCRIPTION

The INA200, INA201, and INA202 are high-side current-shunt monitors with voltage output. The INA200−INA202 can sense drops across shunts at common-mode voltages from −16V to 80V. The INA200−INA202 are available with three output voltage scales: 20V/V, 50V/V, and 100V/V, with up to 500kHz bandwidth.

The INA200, INA201, and INA202 also incorporate an open-drain comparator and internal reference providing a 0.6V threshold. External dividers are used to set the current trip point. The comparator includes a latching capability, which can be made transparent by grounding (or leaving open) the RESET pin.

APPLICATIONS

DNOTEBOOK COMPUTERS

DCELL PHONES

DTELECOM EQUIPMENT

DAUTOMOTIVE

DPOWER MANAGEMENT

DBATTERY CHARGERS

DWELDING EQUIPMENT

The INA200, INA201, and INA202 operate from a single +2.7V to +18V supply, drawing a maximum of 1800 A of supply current. Package options include the very small MSOP-8 and the SO-8. All versions are specified over the extended operating temperature range of −40 °C to +125°C.

		INA200 (G = 20)
1		INA201 (G = 50)
	V+	INA202 (G = 100)
			VIN+	8
2	OUT	G
			VIN−	7
		0.6V
		Reference
3	CMPIN		CMPOUT	6
		Comparator
4	GND
			RESET	5

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date. Products	Copyright 2006−2007, T exas Instruments Incorporated
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.

www.ti.com

INA200

INA201

INA202	www.ti.com
SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

ABSOLUTE MAXIMUM RATINGS(1)

. . . . . . . . . . . . . . . .Supply Voltage, V+	. . . . . . . . . . . . . . . . . . . 18V
Current-Shunt Monitor Analog Inputs, VIN+, VIN−
Differential (VIN+) − (V IN− ) . . . . . . . .	. . . . . . . . . . −18V to +18V
Common Mode(2) . . . . . . . . . . . . . .	. . . . . . . . . . −16V to +80V
Comparator Analog Input and Reset Pins(2) . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	GND − 0.3V to (V+) + 0.3V
Analog Output, Out(2) . . . . . . . . . . . . .	GND − 0.3V to (V+) + 0.3V
Comparator Output, Out Pin(2) . . . . . . .	. . . . . . GND − 0.3V to 18V
Input Current Into Any Pin(2) . . . . . . . .	. . . . . . . . . . . . . . . . . . 5mA
Operating Temperature . . . . . . . . . . . . .	. . . . . . . . −55 °C to +150°C
Storage Temperature . . . . . . . . . . . . . . .	. . . . . . . . −65 °C to +150°C
Junction Temperature . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . +150°C
ESD Ratings:
Human Body Model (HBM) . . . . . . .	. . . . . . . . . . . . . . . . 4000V
Charged Device Model (CDM) . . . .	. . . . . . . . . . . . . . . . 1000V

(1)Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported.

(2)This voltage may exceed the ratings shown if the current at that pin is limited to 5mA.

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe

proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

ORDERING INFORMATION(1)

	PRODUCT	GAIN	PACKAGE-LEAD	PACKAGE DESIGNATOR	PACKAGE MARKING
	INA200	20V/V	MSOP-8	DGK	BQH
			SO-8	D	INA200A
	INA201	50V/V	MSOP-8	DGK	BQJ
			SO-8	D	INA201A
	INA202	100V/V	MSOP-8	DGK	BQL
			SO-8	D	INA202A

(1)For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com.

PIN CONFIGURATIONS

TOP VIEW

		INA200−INA202
V+				VIN+
	1		8
OUT				VIN−
	2		7
CMPIN				CMPOUT
	3		6
				RESET
GND	4		5

MSOP−8 (DGK)

SO−8 (D)

2

	INA200
	INA201
www.ti.com	INA202

SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

ELECTRICAL CHARACTERISTICS: CURRENT-SHUNT MONITOR

Boldface limits apply over the specified temperature range: TA = −40 °C to +125°C.

At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ connected from CMPOUT to VS, and CMPIN = GND, unless otherwise noted.

					INA200, INA201, INA202
CURRENT-SHUNT MONITOR
PARAMETERS				CONDITIONS	MIN		TYP	MAX	UNITS
INPUT
Full-Scale Sense Input Voltage		VSENSE	VSENSE = VIN+ − V IN−				0.15	(VS − 0.25)/Gain	V
Common-Mode Input Range		VCM			−16			80	V
Common-Mode Rejection		CMR	VIN+ = −16V to +80V		80		100		dB
Over Temperature			VIN+ = +12V to +80V		100		123		dB
Offset Voltage, RTI(1)		VOS					±0.5	±2.5	mV
+25°C to +125°C								±3	mV
−40 °C to +25°C								±3.5	mV
vs Temperature		dVOS/dT		TMIN to TMAX			5		µV/°C
vs Power Supply		PSR	VOUT = 2V, VIN+ = +18V, 2.7V				2.5	100	µV/V
Input Bias Current, VIN− Pin		IB					±9	±16	µA
OUTPUT (VSENSE ≥ 20mV)
Gain:		G
INA200							20		V/V
INA201							50		V/V
INA202							100		V/V
Gain Error			VSENSE = 20mV to 100mV				±0.2	±1	%
Over Temperature			VSENSE = 20mV to 100mV					±2	%
Total Output Error(2)			VSENSE = 120mV, VS = +16V				±0.75	±2.2	%
Over Temperature			VSENSE = 120mV, VS = +16V				±0.002	±3.5	%
Nonlinearity Error(3)			VSENSE = 20mV to 100mV						%
Output Impedance		RO					1.5		Ω
Maximum Capacitive Load			No Sustained Oscillation				10		nF
OUTPUT (V	< 20mV)(4)
SENSE
INA200, INA201, INA202			−16V ≤ VCM < 0V				300		mV
INA200			0V ≤ VCM ≤ VS, VS = 5V					0.4	V
INA201			0V ≤ VCM ≤ VS, VS = 5V					1	V
INA202			0V ≤ VCM ≤ VS, VS = 5V					2	V
INA200, INA201, INA202			VS < VCM ≤ 80V				300		mV
VOLTAGE OUTPUT(5)
Output Swing to the Positive Rail			VIN−	= 11V, VIN+ = 12V		(V+) − 0.15		(V+) − 0.25	V
Output Swing to GND(6)			V	= 0V, V = −0.5V		(V	) + 0.004	(V ) + 0.05	V
			IN−	IN+			GND	GND
FREQUENCY RESPONSE
Bandwidth:		BW
INA200				CLOAD = 5pF			500		kHz
INA201				CLOAD = 5pF			300		kHz
INA202				CLOAD = 5pF			200		kHz
Phase Margin				CLOAD < 10nF			40		Degrees
Slew Rate		SR					1		V/µs
Settling Time (1%)			VSENSE = 10mVPP to 100mVPP,				2		µs
				CLOAD = 5pF
NOISE, RTI
Voltage Noise Density							40		nV/√	Hz

(1)Offset is extrapolated from measurements of the output at 20mV and 100mV VSENSE.

(2)Total output error includes effects of gain error and VOS.

(3)Linearity is best fit to a straight line.

(4)For details on this region of operation, see the Accuracy Variations as a Result of VSENSE and Common-Mode Voltage section in the Applications Information.

(5)See Typical Characteristic curve Output Swing vs Output Current.

(6)Specified by design.

3

INA200

INA201

INA202	www.ti.com
SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

ELECTRICAL CHARACTERISTICS: COMPARATOR

Boldface limits apply over the specified temperature range: TA = −40 °C to +125°C.

At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, and RPULL-UP = 5.1kΩ connected from CMPOUT to VS, unless otherwise noted.

INA200, INA201, INA202

COMPARATOR PARAMETERS

CONDITIONS

MIN

TYP

MAX

UNITS

OFFSET VOLTAGE

Threshold

TA = +25°C

mV

590

608

620

Over Temperature

TA = −40 °C to +85°C

586

625

mV

Hysteresis(1)

−8

mV

INPUT BIAS CURRENT(2)

CMPIN Pin

0.005

10

nA

vs Temperature

15

nA

INPUT VOLTAGE RANGE

CMPIN Pin

0V to VS − 1.5V

V

OUTPUT (OPEN-DRAIN)

Large-Signal Differential Voltage Gain

CMP VOUT 1V to 4V, RL ≥ 15kΩ Connected to 5V

200

V/mV

High-Level Leakage Current(3)(4)

ILKG

VID = 0.4V, VOH = VS

0.0001

1

µA

Low-Level Output Voltage(3)

V

V

= −0.6V, I

OL

= 2.35mA

220

300

mV

OL

ID

RESPONSE TIME

Response Time(5)

RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive

1.3

µs

RESET

RESET

Threshold(6)

1.1

V

Logic Input Impedance

2

MΩ

Minimum

RESET

Pulse Width

1.5

µs

RESET

Propagation Delay

3

µs

(1)Hysteresis refers to the threshold (the threshold specification applies to a rising edge of a noninverting input) of a falling edge on the noninverting input of the comparator; refer to Figure 1.

(2)Specified by design.

(3)VID refers to the differential voltage at the comparator inputs.

(4)Open-drain output can be pulled to the range of +2.7V to +18V, regardless of VS.

(5)The comparator response time specified is the interval between the input step function and the instant when the output crosses 1.4V.

(6)The RESET input has an internal 2MΩ (typical) pull-down. Leaving RESET open results in a LOW state, with transparent comparator operation.

VTHRESHOLD

0.592V 0.6V

Input Voltage

Hysteresis = VTHRESHOLD − 8mV

Figure 1. Typical Comparator Hysteresis

4

	INA200
	INA201
www.ti.com	INA202

SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

ELECTRICAL CHARACTERISTICS: GENERAL

Boldface limits apply over the specified temperature range: TA = −40 °C to +125°C.

At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ connected from CMPOUT to VS, and CMPIN = 1V, unless otherwise noted.

			INA200, INA201, INA202
GENERAL PARAMETERS		CONDITIONS	MIN	TYP	MAX	UNITS
POWER SUPPLY
Operating Power Supply	VS					V
			+2.7		+18
Quiescent Current	IQ	VOUT = 2V		1350	1800	A
Over Temperature		VSENSE = 0mV			1850	A
Comparator Power-On Reset Threshold(1)				1.5		V
TEMPERATURE
Specified Temperature Range			−40		+125	°C
Operating Temperature Range			−55		+150	°C
Storage Temperature Range			−65		+150	°C
Thermal Resistance	qJA					°C/W
MSOP-8 Surface-Mount				200
SO-8				150		°C/W

(1)The INA200, INA201, and INA202 are designed to power-up with the comparator in a defined reset state as long as RESET is open or grounded. The comparator is in reset as long as the power supply is below the voltage shown here. The comparator assumes a state based on the comparator input above this supply voltage. If RESET is high at power-up, the comparator output comes up high and requires a reset to assume a low state, if appropriate.

5

INA200

INA201

INA202	www.ti.com
SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

TYPICAL CHARACTERISTICS

At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted.

GAIN vs FREQUENCY

	45			CLOAD = 1000pF
	40	G = 100
	35	G = 50
(dB)	30	G = 20
	25
Gain
	20
	15
	10
	5
		10k	100k	1M
			Frequency (Hz)

GAIN PLOT

	20
	18
		100V/V
	16
	14
									50V/V
	12
(V)
	10
OUT
V	8
															20V/V
	6
	4
	2
	0
			100
	20				200		300			400			500				600			700			800			900
									VDIFFERENTIAL (mV)
	4.0						OUTPUT ERROR vs VSENSE
value)
	3.5
ErrorOutput outputidealtheof	3.0
	2.5
	2.0
error	1.5
	1.0
(%
	0.5
	0
			50		100												350			400			450			500
	0						150			200			250		300

VSENSE (mV)

GAIN vs FREQUENCY

	45
	40	G = 100
	35	G = 50
(dB)	30	G = 20
	25
Gain
	20
	15
	10
	5
	10k	100k	1M
		Frequency (Hz)

COMMON−MODE AND POWER−SUPPLY REJECTION vs FREQUENCY

		140
		130
	(dB)	120		CMR
Common−Mode and		110
	Power−Supply Rejection
		100
		90		PSR
		80
		70
		60
		50
		40
		10	100	1k	10k	100k
				Frequency (Hz)

OUTPUT ERROR vs COMMON−MODE VOLTAGE

	0.1
	0.09
	0.08
)	0.07
(%
	0.06
Error
	0.05
Output	0.04
	0.03
	0.02
	0.01
	0
	− 16 −12	− 8	−4	0	4	8	12 16	20	...	76	80
				Common−Mode Voltage (V)

6

	INA200
	INA201
www.ti.com	INA202

SBOS374B − NOVEMBER 2006 − REVISED OCTOBER 2007

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted.

Output Voltage (V)

Q

I (mA)

			POSITIVE OUTPUT VOLTAGE SWING
				vs OUTPUT CURRENT
	12
	11	VS	= 12V
	10
		Sourcing Current
	9
									+25_C
	8
							+125_C			− 40_C
	7
	6	VS	= 3V
	5
		Sourcing Current
	4
				+25_C		−40_C		Output	stage is designed
	3
								to source current. Current
	2
								sinking	capability		is
	1	+125 C						approximately 400µA.
	0		_
		0	5	10			15	20		25	30
				Output Current (mA)
				QUIESCENT CURRENT
				vs COMMON−MODE VOLTAGE
	2.00	VSENSE = 100mV
	1.75			V		= 12V		VS = 2.7V
				S
	1.50
	1.25
	1.00			VS = 12V
								VS = 2.7V
		VSENSE = 0mV
	0.75
	0.50
	−16 −12 −8			−4 0		4	8	12 16	20 24	28	32 36
						VCM (V)
					STEP RESPONSE
										G = 20
	Output Voltage (50mV/div)
		VSENSE = 10mV to 20mV
						Time (2µs/div)

QUIESCENT CURRENT vs OUTPUT VOLTAGE

		3.5
		3.0
		2.5
	(mA)	2.0
		1.5
	IQ
		1.0

0.5
0
									8	9	10
0		1	2	3	4	5	6	7
					Output Voltage (V)
			OUTPUT SHORT−CIRCUIT CURRENT
					vs SUPPLY VOLTAGE
34
								− 40_C

(mA)	30							+25_C
Current	26					+125_C
	22
Short−Circuit
	18
	14
Output	10
	6
	2.5	3.5	4.5	5.5	6.5	7.5	8.5	9.5	10.5	11.5	17	18
					Supply Voltage (V)

STEP RESPONSE

G = 20

Output Voltage (500mV/div)

VSENSE = 10mV to 100mV

Time (2µs/div)

7